The Mantis is a small computer controlled 3D milling machine for little money you can make yourself.
He has a working range of 190 x 130 x 50mm.
There is a Dremel-type milling machine mounted on, so you can easily buy standard accessories. The Manits can foam, wood, rubber, wax, soft stone and copper milling. You make the compuer in a 2D or a 3D model and the Mantis from the mills.
You can find more info in the dutch version: Mantis.